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authorFilip Tehlar <ftehlar@cisco.com>2020-07-06 14:52:25 +0000
committerBenoƮt Ganne <bganne@cisco.com>2020-07-07 08:18:57 +0000
commit190983de619e340a148cff8b1b1d8c9e0cd8c95a (patch)
treede24a96080ee53bd327b2eb0ccd5c48a379d5d49
parent742000af2043ab2f9b18f5a062491fe1ab66573e (diff)
ikev2: per thread usage of openssl context
Type: refactor Change-Id: I04af90b4d86c00092ce1732aeb3c0517af1808e0 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
-rw-r--r--src/plugins/ikev2/ikev2.c20
-rw-r--r--src/plugins/ikev2/ikev2_crypto.c97
-rw-r--r--src/plugins/ikev2/ikev2_priv.h7
3 files changed, 47 insertions, 77 deletions
diff --git a/src/plugins/ikev2/ikev2.c b/src/plugins/ikev2/ikev2.c
index 8537e0a..08a66cb 100644
--- a/src/plugins/ikev2/ikev2.c
+++ b/src/plugins/ikev2/ikev2.c
@@ -3989,10 +3989,22 @@ ikev2_init (vlib_main_t * vm)
vec_validate_aligned (km->per_thread_data, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
- for (thread_id = 0; thread_id < tm->n_vlib_mains - 1; thread_id++)
- {
- km->per_thread_data[thread_id].sa_by_rspi =
- hash_create (0, sizeof (uword));
+ for (thread_id = 0; thread_id < tm->n_vlib_mains; thread_id++)
+ {
+ ikev2_main_per_thread_data_t *ptd =
+ vec_elt_at_index (km->per_thread_data, thread_id);
+
+ ptd->sa_by_rspi = hash_create (0, sizeof (uword));
+
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+ ptd->evp_ctx = EVP_CIPHER_CTX_new ();
+ ptd->hmac_ctx = HMAC_CTX_new ();
+#else
+ EVP_CIPHER_CTX_init (&ptd->_evp_ctx);
+ ptd->evp_ctx = &ptd->_evp_ctx;
+ HMAC_CTX_init (&(ptd->_hmac_ctx));
+ ptd->hmac_ctx = &ptd->_hmac_ctx;
+#endif
}
km->sa_by_ispi = hash_create (0, sizeof (uword));
diff --git a/src/plugins/ikev2/ikev2_crypto.c b/src/plugins/ikev2/ikev2_crypto.c
index 572bee8..5a07bde 100644
--- a/src/plugins/ikev2/ikev2_crypto.c
+++ b/src/plugins/ikev2/ikev2_crypto.c
@@ -256,28 +256,18 @@ static const char modp_dh_2048_256_generator[] =
v8 *
ikev2_calc_prf (ikev2_sa_transform_t * tr, v8 * key, v8 * data)
{
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- HMAC_CTX *ctx;
-#else
- HMAC_CTX ctx;
-#endif
+ ikev2_main_t *km = &ikev2_main;
+ u32 thread_index = vlib_get_thread_index ();
+ ikev2_main_per_thread_data_t *ptd =
+ vec_elt_at_index (km->per_thread_data, thread_index);
+ HMAC_CTX *ctx = ptd->hmac_ctx;
v8 *prf;
unsigned int len = 0;
prf = vec_new (u8, tr->key_trunc);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- ctx = HMAC_CTX_new ();
HMAC_Init_ex (ctx, key, vec_len (key), tr->md, NULL);
HMAC_Update (ctx, data, vec_len (data));
HMAC_Final (ctx, prf, &len);
- HMAC_CTX_free (ctx);
-#else
- HMAC_CTX_init (&ctx);
- HMAC_Init_ex (&ctx, key, vec_len (key), tr->md, NULL);
- HMAC_Update (&ctx, data, vec_len (data));
- HMAC_Final (&ctx, prf, &len);
- HMAC_CTX_cleanup (&ctx);
-#endif
ASSERT (len == tr->key_trunc);
return prf;
@@ -328,12 +318,12 @@ ikev2_calc_prfplus (ikev2_sa_transform_t * tr, u8 * key, u8 * seed, int len)
v8 *
ikev2_calc_integr (ikev2_sa_transform_t * tr, v8 * key, u8 * data, int len)
{
+ ikev2_main_t *km = &ikev2_main;
+ u32 thread_index = vlib_get_thread_index ();
+ ikev2_main_per_thread_data_t *ptd =
+ vec_elt_at_index (km->per_thread_data, thread_index);
+ HMAC_CTX *ctx = ptd->hmac_ctx;
v8 *r;
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- HMAC_CTX *hctx;
-#else
- HMAC_CTX hctx;
-#endif
unsigned int l;
ASSERT (tr->type == IKEV2_TRANSFORM_TYPE_INTEG);
@@ -350,20 +340,9 @@ ikev2_calc_integr (ikev2_sa_transform_t * tr, v8 * key, u8 * data, int len)
}
/* verify integrity of data */
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- hctx = HMAC_CTX_new ();
- HMAC_Init_ex (hctx, key, vec_len (key), tr->md, NULL);
- HMAC_Update (hctx, (const u8 *) data, len);
- HMAC_Final (hctx, r, &l);
- HMAC_CTX_free (hctx);
-#else
- HMAC_CTX_init (&hctx);
- HMAC_Init_ex (&hctx, key, vec_len (key), tr->md, NULL);
- HMAC_Update (&hctx, (const u8 *) data, len);
- HMAC_Final (&hctx, r, &l);
- HMAC_CTX_cleanup (&hctx);
-#endif
-
+ HMAC_Init_ex (ctx, key, vec_len (key), tr->md, NULL);
+ HMAC_Update (ctx, (const u8 *) data, len);
+ HMAC_Final (ctx, r, &l);
ASSERT (l == tr->key_len);
return r;
@@ -372,12 +351,11 @@ ikev2_calc_integr (ikev2_sa_transform_t * tr, v8 * key, u8 * data, int len)
v8 *
ikev2_decrypt_data (ikev2_sa_t * sa, u8 * data, int len)
{
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- EVP_CIPHER_CTX *ctx;
-#else
- EVP_CIPHER_CTX ctx;
-#endif
- v8 *r;
+ ikev2_main_t *km = &ikev2_main;
+ u32 thread_index = vlib_get_thread_index ();
+ ikev2_main_per_thread_data_t *ptd =
+ vec_elt_at_index (km->per_thread_data, thread_index);
+ EVP_CIPHER_CTX *ctx = ptd->evp_ctx;
int out_len = 0, block_size;
ikev2_sa_transform_t *tr_encr;
u8 *key = sa->is_initiator ? sa->sk_er : sa->sk_ei;
@@ -393,42 +371,24 @@ ikev2_decrypt_data (ikev2_sa_t * sa, u8 * data, int len)
return 0;
}
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- ctx = EVP_CIPHER_CTX_new ();
-#else
- EVP_CIPHER_CTX_init (&ctx);
-#endif
-
- r = vec_new (u8, len - block_size);
-
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+ v8 *r = vec_new (u8, len - block_size);
EVP_DecryptInit_ex (ctx, tr_encr->cipher, NULL, key, data);
EVP_DecryptUpdate (ctx, r, &out_len, data + block_size, len - block_size);
EVP_DecryptFinal_ex (ctx, r + out_len, &out_len);
-#else
- EVP_DecryptInit_ex (&ctx, tr_encr->cipher, NULL, key, data);
- EVP_DecryptUpdate (&ctx, r, &out_len, data + block_size, len - block_size);
- EVP_DecryptFinal_ex (&ctx, r + out_len, &out_len);
-#endif
/* remove padding */
_vec_len (r) -= r[vec_len (r) - 1] + 1;
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- EVP_CIPHER_CTX_free (ctx);
-#else
- EVP_CIPHER_CTX_cleanup (&ctx);
-#endif
return r;
}
int
ikev2_encrypt_data (ikev2_sa_t * sa, v8 * src, u8 * dst)
{
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- EVP_CIPHER_CTX *ctx;
-#else
- EVP_CIPHER_CTX ctx;
-#endif
+ ikev2_main_t *km = &ikev2_main;
+ u32 thread_index = vlib_get_thread_index ();
+ ikev2_main_per_thread_data_t *ptd =
+ vec_elt_at_index (km->per_thread_data, thread_index);
+ EVP_CIPHER_CTX *ctx = ptd->evp_ctx;
int out_len;
int bs;
ikev2_sa_transform_t *tr_encr;
@@ -441,17 +401,8 @@ ikev2_encrypt_data (ikev2_sa_t * sa, v8 * src, u8 * dst)
/* generate IV */
RAND_bytes (dst, bs);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
- ctx = EVP_CIPHER_CTX_new ();
EVP_EncryptInit_ex (ctx, tr_encr->cipher, NULL, key, dst /* dst */ );
EVP_EncryptUpdate (ctx, dst + bs, &out_len, src, vec_len (src));
- EVP_CIPHER_CTX_free (ctx);
-#else
- EVP_CIPHER_CTX_init (&ctx);
- EVP_EncryptInit_ex (&ctx, tr_encr->cipher, NULL, key, dst /* dst */ );
- EVP_EncryptUpdate (&ctx, dst + bs, &out_len, src, vec_len (src));
- EVP_CIPHER_CTX_cleanup (&ctx);
-#endif
ASSERT (vec_len (src) == out_len);
diff --git a/src/plugins/ikev2/ikev2_priv.h b/src/plugins/ikev2/ikev2_priv.h
index 44ef6eb..b018a64 100644
--- a/src/plugins/ikev2/ikev2_priv.h
+++ b/src/plugins/ikev2/ikev2_priv.h
@@ -453,6 +453,13 @@ typedef struct
/* hash */
uword *sa_by_rspi;
+
+ EVP_CIPHER_CTX *evp_ctx;
+ HMAC_CTX *hmac_ctx;
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+ HMAC_CTX _hmac_ctx;
+ EVP_CIPHER_CTX _evp_ctx;
+#endif
} ikev2_main_per_thread_data_t;
typedef struct